6533b821fe1ef96bd127b7cb
RESEARCH PRODUCT
Non-Markovian dissipative dynamics of two coupled qubits in independent reservoirs: a comparison between exact solutions and master equation approaches
M. ScalaM. ScalaElena FerraroRosanna MiglioreAnna Napolisubject
PhysicsQuantum PhysicsQuantum decoherenceMarkov processFOS: Physical sciencesAtomic and Molecular Physics and OpticsOpen quantum systemRange (mathematics)symbols.namesakeClassical mechanicsQubitMaster equationsymbolsopen quantum system master equation techniquesStatistical physicsQuantum Physics (quant-ph)BosonQuantum computerdescription
The reduced dynamics of two interacting qubits coupled to two independent bosonic baths is investigated. The one-excitation dynamics is derived and compared with that based on the resolution of appropriate non-Markovian master equations. The Nakajima-Zwanzig and the time-convolutionless projection operator techniques are exploited to provide a description of the non-Markovian features of the dynamics of the two-qubits system. The validity of such approximate methods and their range of validity in correspondence to different choices of the parameters describing the system are brought to light.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-01-01 |